001/*
002 *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003 *
004 *  This file is licensed to You under the Eclipse Public License (EPL);
005 *  You may not use this file except in compliance with the License. You
006 *  may obtain a copy of the License at
007 *
008 *      http://www.opensource.org/licenses/eclipse-1.0.php
009 *
010 *  See the COPYRIGHT.txt file distributed with this work for information
011 *  regarding copyright ownership.
012 */
013package org.mmtk.plan.generational.immix;
014
015import org.mmtk.plan.generational.GenConstraints;
016
017import static org.mmtk.policy.immix.ImmixConstants.MAX_IMMIX_OBJECT_BYTES;
018
019import org.vmmagic.pragma.*;
020
021/**
022 * This class and its subclasses communicate to the host VM/Runtime
023 * any features of the selected plan that it needs to know.  This is
024 * separate from the main Plan/PlanLocal class in order to bypass any
025 * issues with ordering of static initialization.
026 *
027 */
028@Uninterruptible
029public class GenImmixConstraints extends GenConstraints {
030  @Override
031  public int numSpecializedScans() {
032    return 2;
033  }
034  @Override
035  public int maxNonLOSCopyBytes() {
036    return MAX_IMMIX_OBJECT_BYTES;
037  }
038}